Hilary, 23, who married Canadian hockey player Mike Comrie last August, wrote on Twitter after reading the speculation: "'Wow what a way to wake up and find out you're pregs!

"It's just a rumor guys!", she said. "Not true. But thanks for all the good wishes! Lol."

The star, who is filming big-screen comedy She Wants Me with Charlie Sheen, spoke earlier this month of wanting children, telling UsMagazine: "Yeah, I think we're really excited to have kids. And he (Mike) comes from a big family."

But she has said she wants to enjoy just being married first, saying: "I'm only 23, so give me a little bit of time. Come on people!"